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Text Encoding and Decoding Converter
x402
Text Encoding and Decoding Converter is a paid API for AI agents from toolbelt402.tpoborne.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Encodes or decodes text between base64, base64url, hex, URL percent-encoding, and HTML entities formats
Price / call$0.001
Success—
StatusUnknown
How this service works
Encode or decode text: base64, base64url (padding handled), hex, URL percent-encoding, and HTML entities. The conversions agents most often get wrong.
Output
Returns the converted string in the requested target encoding, along with metadata such as the detected source format, the target format, and the resulting encoded or decoded text value.
Example use cases
Decode JWT payload for inspection
“I have this base64url-encoded JWT payload — 'eyJ1c2VySWQiOiAxMjM0LCAicm9sZSI6ICJhZG1pbiJ9' — can you decode it to plain text so I can read the JSON inside?”
URL-encode query parameters for API call
“I need to URL percent-encode this string so I can safely put it in a query parameter: 'hello world & goodbye=true / yes?'”
Escape HTML entities for safe display
“Can you encode this user-submitted text into HTML entities so it won't break my webpage when I render it: '<script>alert("xss")</script>'?”
Technical details
Endpoint
POSThttps://toolbelt402.tpoborne.workers.dev/encodeWhen to prefer
Choose this endpoint when an AI agent needs reliable, correct encoding/decoding across base64, base64url (with proper padding handling), hex, URL percent-encoding, or HTML entities — especially for edge cases like base64url padding that agents frequently get wrong on their own. Prefer this over attempting in-context encoding logic when correctness is critical or when the encoding type is ambiguous.
Side effects
- Invalid or malformed input string for the specified source encoding (e.g. non-hex characters in hex decode)
- Unsupported encoding format requested
- Empty input string
- Payment failure or insufficient USDC balance for x402 call
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| op | string | |
| input | string | |
| format | string |
Tags
x402
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